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Applications of the Linear Logistic Test Model in Psychometric Research

University of Vienna

The linear logistic test model (LLTM) breaks down the item parameter of the Rasch model as a linear combination of some hypothesized elementary parameters. Although the original purpose of applying the LLTM was primarily to generate test items with specified item difficulty, there are still many other potential applications, which may be of use for psychometric research on various testing conditions. This article provides some examples of such applications. The examples include (a) position effect of item presentation (in particular, learning and fatigue effects); (b) content-specific learning effect; (c) effect of speeded item presentation; and (d) effect of item response format.

Key Words: Rasch model • LLTM • test administration • learning effect • multiple choice response format

This version was published on April 1, 2009

Educational and Psychological Measurement, Vol. 69, No. 2, 232-244 (2009)
DOI: 10.1177/0013164408322021


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